I've got to give my opinion on this one......I can't see why you would send them to collections if they are homeless. If they are homeless there is most likely nothing to collect, correct? I don't think a collection agency would have any more 'luck' collecting than anyone else, with the exception of the someone connected to organized crime. I think it would be a waste of your time to send the info over to the collection agency, and a waste of the collection agency's time to try to locate someone without any address, job, etc. I'm afraid the dr is going to have to eat this one.